Soyuz 7K-L1 PAO

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Soyuz 7K-L1 PAO

Part of Soyuz

Russian manned spacecraft module. 12 launches, 1967.03.10 (Cosmos 146) to 1970.10.20 (Zond 8). Modification of Soyuz 7K-OK basic PAO service module with pump-fed main engines and separate RCS/main engine propellant feed system. Equipment-engine section.

AKA: Priborno-agregatniy otsek. Status: Operational 1967. Thrust: 4.17 kN (937 lbf). Gross mass: 2,700 kg (5,900 lb). Unfuelled mass: 2,300 kg (5,000 lb). Specific impulse: 276 s. Height: 2.26 m (7.41 ft). Diameter: 2.15 m (7.05 ft).

KTDU-53 engine with no back-up thrusters, translunar celestial navigation system, and smaller area solar panels in contrast to standard Soyuz configuration.

RCS Coarse No x Thrust: 14 X 98 N. RCS Fine No x Thrust: 4 X 98 N. RCS Coarse Backup No x Thrust: 8 x 10 N. RCS Fine Backup No x Thrust: 4 x 10 N roll. Electric System: 0.50 average kW.

Family: Manned spacecraft module. Country: Russia. Engines: KTDU-53. Spacecraft: Soyuz 7K-L1. Propellants: Nitric acid/UDMH.

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